Definition
ChEBI: (7R,8R)-AGI-B4 is a member of the class of xanthones that is methyl (1S)-2,9-dihydro-1H-xanthene-1-carboxylate substituted by hydroxy groups at positions 2 and 8, a hydroxymethyl group at position 6 and an oxo group at position 9. It has been isolated from the sea fan derived fungus Aspergillus sydowii. It has a role as an Aspergillus metabolite and an antioxidant. It is a member of xanthones, a member of phenols, an aromatic primary alcohol, a methyl ester and a secondary alcohol.